Intermittent-operating mechanism



e. A. SHAFFER. LNTERMITTENT OPERATING MECHANISM. APPLICATION FILEDFEB-1. 19l7. RENEW ED MAY 6. I922.

. Patentd Dec. 5,1922,

2 SHEETSSHEET I.

w a if a Gbbozheg G. A. SHAFFER. INTERMITTENI OPERATING MECHANISM.-APPLICATION FILED FEB- Z. I9I7- RENEWED MAY 6, I922.

1,437,779, Patented Dec. 5,1922.

2 SHEETS-SHEET 2.

Patented Dec. 5, 1922.

area enter GLENN ARTHUR SHAEFER, G13 GREEN BAY, WISCONSIN, ASSIGNOE, 01FORT Y-TWO AND tries.

ONE-HALF PER CENT TO FRANKLIN H. WIETZ, O]? GREEN BAY, WISCONSIN.

INTERMITTENT-OPERATING llIEClE-IANISM.

Application filed February 7, 1917, Serial No. 147,150. Renewed May 6,1922. Serial No. 559,059.

To all whom it may concern.-

Be it known that I, GLENN A. SHArrnn, a subject of the King of GreatBritain, residing at Green Bay, in the county. of Brown and State ofWisconsin, have invented certain useful Improvements in Intermittent-Operating Mechanism, of which the following is a specification,reference being had therein to the accompanying drawing.

The invention relates to a gearing, and more particularly to a pinionconstruction.

The primary object of the invention is the provision of a gearing ofthis character .wherein the same may. give any ratio of speed thatcannot possibly be obtained by the use of a single gear and pinion, thusmaking gear tralns unnecessary and saving valuable space by theelimination of any external moving parts, which is conducive to safety.

Another object of the invention is the provision of a gearing of thischaracter wherein 110158 Wlll be almost entirely eliminated, and whichwill require minimum attention and a reduction in the number of parts tobe replaced when worn, the parts which may re quire'replacement beingsimple in form. A further object of the invention is the provision of agearing wherein power may be delivered by a motor or other prime moverat one reduction of speed direct to the driven member without the use ofa train of gearing or other like construction.

A still further object of the invention is the provision of a gearingwhich is of selflocking type so that the said gearing will be designatesa portion of a driving shaft which wherein the construction thereof isnovel in form so as to minimize liability of disorder and to assure thehighest efficiency in operation.

rel or sleeve; 7 i r A still further object of the invention is theprovision of a gearing of this character which is simple inconstruction, thoroughly reliable and efficient in operation, strong,durable, and inexpensive in manufacture and installation.

Other objects will be in part obvious and in part hereinafter set forth.

The invention accordingly consists in the features of construction,combination of ele ments and arrangement of parts which will beexemplified inthe construction herein after described, and the scope ofthe upplication of which. will be indicated in the appended claims. i

In the accompanying drawings:

Figure 1 is a fragmentary elevation of a gearing constructed inaccordance with the invention x Figure 2 is a vertical longitudinalsectional view thereof;

Figure 'is a vertical transversesectional view;

Figure 4 is being broken away;

Figure 5 1s a perspective view of the bar- Figure 6 is a fragmentarysectional view on the line 6-6 of Figure 2. i

Similar reference characters indicate corresponding parts throughout theseveral views of the drawings.

Referring to the drawings in detail, A

trio 10, while the driven'shaft B has integrally formed therewith, atthe end adjacent the eccentric. an internal toothed gear wheel 11, whichis preferably constructed with the internal teeth 12 at the inner pe afragmentary perspective view of the eccentric arms'assembled withrespect toeach other,-the barrel or sleeve riphery of the flange or rim13, the shafts A and B being journaled in a boxing or casing includingthe sections i i and 15, respectively, which are bolted or otherwisefastened together, and in which instance each is formed with a base 16which may be made fast to a support or other stationary part. Thesections 14 and 15 are readily separable from each other so as to permitaccess to the interior of the boxing or housing, which conceals orconfines therein the aring hereinafter set forth in detail.

The shafts A. and B are rotatably engaged in bushings or bearings 17which are fitted within the sections 1% and 15 or the boxing or housing.Mounted concentrically with respect to the shaft A. in the section 15 ofthe boxing or housing are the stems 1 .8 or oscillatory guides 19, thestems being ed within the bushings. or bearings 20 car d in said section15. of the boring or housin b7 and working through these guldes areslides '20- in which are pivoted eccentric arms 21,

22 and 23, respectively, although it'is to be understood that the numberof arms may be increased, while'in this instance only three are shown,and these arms 22 are formed at their inner ends with eccentric sleeves24: which lOOSQlE "SUTUOUHCl the eccentric 10 and are held in closeassembled relation to each other through the medn n of a split barrel orsleeve 25 which is formed with cut away portions 26 for a clearance forthe arms 21, 22 and 23 in their working,

These arms 21. 22 and 23. their outer free ends, describe a path ofmovement resembling an ellipse-like curve, and several of the same arealways in mesh with the teeth 12 of the gear 11. The outer ends 27 ofthe arm 21, 22 and 23;. simulate gear teeth and are so shaped or formedas to impart a practically uniform steady motion to'the gear 11 on theoperation of the arms which oscillate in the guides 19, the lattermoving in the bushings orbearings 20 in the section 1.5 of the boxing orhousing. The horn ing or housingis constructed to render the sameoil-tight so that it will hold oil to provide for the constantlubrication of the gearing in a bath of oil.

The gearing may be constructed to run on. an external toothed gear aswell as the internal toothed gear with slight changes, ii ut withoutdevia. g "from the principle of operation evolved in. the working of thehereinbefore set forth.

It will be noted: that the toothed end 27 o each arm in oscillating inan ellipse-like path will be 1... .rly in full mesh with one of theteeth 12 of the. gear 11 during its working. period, and in thisinstance, as illustrated. one-third of a revolution of the shaft A. Itis also contemplated within the oi? the invention to vary theconstruction of the arms 21, 22 and 23 and also the nasmre eccentric 10in such proportion to advance the gear ll one or more teeth and also oneor more teeth may be cut or formed on each arm. 2

The split barrel or sleeve 25 is adjustable thro. l; medium of the bolt28 so as 'bute the work done by the eccentric the whole surface of theeccentric, thus reducing the size of the eccentric to the i: iallestsize necessary to do the worn.

In gear and pinion drives the. ratio: is rather low for this reason.Pinions have a alumni of twelve teeth and on a gear and p1 n hai .ng aratio of twe ve to one the gear would have one hundred forty-four teeth.which is approximately about the "or diameter, that is to say, a conven-T. it, so that for any. ratio above twelve 0 o e th foregoing gearconstruction would ii may oe had in the. first cost in some "a lowspeeddrives using.- the. gearing h inbeiore set forth and a small highis understood that when e of a motor is reduced the weight, cessarilythe cost, rises very rapidly lie is almost, if not entirely, e. Theconstruction of gearing the necessity of train gearing, a reduction inthe number of parts permits the said gearing to be easily and cheaplymade, as well as eliminating liability of disorder and at the same timeassuring maximum efficiency in operation. it is to be understood thatthe invention in its scope contemplates the employment of any means,other than a gearand pinion or worm and worm wheel, for impartinguniform motion, at a hi her or lowerhuniber of revolutions per minute,from a d-riving to driven shaft. 7 i

From the foregoing description, taken connection with the accompanyingdrawthe construction and operation of the herein :lcr ibed caring, willbe readily apparent and, the are, a more extended exi' l'an has beenomitted.

described. my invention, l

by said means, and a sliding part 'rotatably supported for directing themember for: action upon the gear. i

2. In combination with" driving and driven parts, of an internallytoothed gear on the driven part, eccentrically movable means within saidvgear and operated by said driving part'for action upon thegear, andreciprocating means forming a pivot bearing for said movable means andsupported for reciprocation to impart a curvilinear movement to saidfirst named means.

3. In combination with driving and driven shafts, of an internallytoothed gear on said driven shaft, eccentrically movable meanswithin'said gear and operated by said driving shaft for action upon thegear, and slidab'le means cooperative with the eccentrically movablemeans to forma pivotal bearing for the latter for directing the same toand from the gear.

4;. In combination with driving and driven shafts, of an internallytoothed gear on said driven shaft, eccentrically movable means withinsaid gear and operated by said driving shaft for action upon the gear,slidable means for said means, and guiding means cooperative with thesecond named means.

5. The combination with an internally toothed gear, of eccentricallymovable triple means for operation within the gear to engage its teethat three points thereof and slidable means supported for reciprocationto allow elliptical motion to the first named means. I

6. The combination with a gear, ofeccentrically movable triple means foraction upon the gear, slidable means supported for reciprocation toallow elliptical motion to the first named means, and means for drivingsaid first named means.

7. The combination with a movable gear, ofa member having an ellipticalmotion for moving said gear, means for imparting movement to the member,means for guiding the member in its movement, and reciprocative means inthe guiding means for said member. V

8. The combinationwith a movable gear, of a member for moving said gear,means for imparting movement to the member, means for guiding the memberin its movement, reciprocative means in the guiding means for saidmember,'and a casing for the gear and member.

9. The combination with a movable gear, of a member having an ellipticalmotion for movingthe gear, means for imparting move ment to the member,means for guiding the member in its movement, reciproc ative means forthe member and supported by the guiding means, and. a casing for all ofthe parts and adapted to contain oil for continuously lubricating thegear and member.

' 10. In a gearing, a driving shaft, a driven shaft, an eccentric on thedrl'ving'shaft, a

gear on the driven shaft, oscillatory memgear on the driven shaft,oscillatory mem bers disposed concentrically about the driving shaft, aplurality of arms connected to the eccentric and movable through theoscillatory members for engagement with the gear, and an adjustablesleeve for said arms.

12. In a gearing, a driving shaft, a driven shaft, an eccentric onthedriving shaft, a gear on the driven shaft, oscillatory membersdisposedconcentrically aboutthe driving shaft, a plurality of armsconnected to the eccentJic and movable through the oscillatory membersfor engagement with the gear, an adjustable sleeve for said arms, and acasing enclosing the gear, arms, member and eccentric.

13. In a gearing, a driving shaft, a driven shaft, an eccentric on thedriving shaft, a gear on the driven shaft, oscillatory members disposedconcentrically about the driving'shaft, a plurality of arms connected tothe eccentric and movable through the oscillatory members for engagementwith the gear, an adjustable sleeve for said arms, a casing enclosingthe gear, arms, member and eccentric, and bearings for the oscillatory,

members journaled in said casing.

14;. In a gearing, a driving shaft, a driven shaft, an eccentric. on thedriving shaft, a gear on the driven shaft, oscillatory members disposedconcentrically about the driving shaft, a plurality of arms connected tothe eccentric and movable through the oscillatory members for engagementwith the gear, an adjustablesleeve for said arms, a

casing enclosing the gear, arms, member and eccentric, bearings for theoscillatory members journaled in said casing, and bushings for thedriving; and driven shafts.

i '15. The combination with a rotatable gear, of eccentricallyoperated'means forming a driving element for the gear, and slidablemeans supported for reciprocation and active upon the first named meansto direct the latter towar'dand away from engaging positions with thefor operation thereon.

16. The combination of a gear, an eccentrically movable means forming adriving element for the gear, a member forming a movable support forsaid means to bring the same into and out of engagement with the gear,and reciprocatory means carrying said member.

l7..The combination of a toothed gear,

means forming a driving element, a member controlled by said means foraction upon the gear, and it slidalile means supported for reciprocationto direct said member for its action upon the gear.

18. The combination of a, driven element, means forming a drivingelement in axial alignment with said driven element, a member connectedwith said means for action upon the driven element, and means movable 10radially relative to said elements for reciprocation and engaging themember to direct it for action upon the driven element.

In testimony whereof I affix my signature.

GLENN ARTHUR SHAFFER

